$func Arg     s.Int = e.Arg;
$func Args          = e.Args;
$func GetEnv  e.VarName = e.Value;
$func Time    = e.String;
$func Exit    s.ReturnCode = ;
$func Delay s.Interv = ;
$func Sleep s.Interv = ;
$func Random s.Limit = s.Rand;  /* 0 <= s.Rand < s.Limit */
$func Randomize = ;